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Cri-du-Chat Syndrome

Cri-du-Chat Syndrome. By Christina Pham. What is Cri-du-Chat syndrome?. Cri-du-Chat syndrome is genetic disorder cause by a deletion (the length of which may vary) on the short arm of chromosome 5.

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Cri-du-Chat Syndrome

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  1. Cri-du-Chat Syndrome By Christina Pham

  2. What is Cri-du-Chat syndrome? • Cri-du-Chat syndrome is genetic disorder cause by a deletion (the length of which may vary) on the short arm of chromosome 5. • Its name is a French term (cat-cry or call of the cat) referring to the characteristic cat-like cry of affected children.

  3. Affects and Symptoms • It affects between 1 in 20,000 and 1 in 50,000 babies. • Some symptoms of Cri-du-Chat is: Having cat-like cries Behavior problems Widely set eyes and small/round face. This picture shows some of the symptoms that are listed.

  4. How do people get it? • A break in the DNA molecule that makes up a chromosome cause a deletion. • The chromosome break occurs while the sperm or egg cell is developing, in most cases. • The child will develop cri-du-chat syndrome, when this gamete is fertilized. This picture shows the deleted regions in Chromosome 5 pair.

  5. Treated, Diagnosed, and Level • There is not really a real treatment for it. • But they can go through therapy to improve their language skills, motor skills, and to help them develop as normally as possible though. • It is possible to test for cri-du-chat while the baby is still in its mother's womb or through a tiny sample of tissue from outside the sac where the baby develops • It happens in Chromosome Abnormalities. • It is a Level 2.

  6. Interesting Facts • Jerome Lejeune ,a geneticist, identifie cri-du-chat syndrome in 1963. He also discovered the genetic abnormality that causes Down syndrome. • The chromosome carrying the deletion comes from the father's sperm rather than the mother's egg, in 80% of the cases. • Cri-du-chat is one of the most common syndromes caused by a chromosomal deletion. This is a picture of Jerome Lejeune.

  7. Citations • "CRI-DU-CHAT SYNDROME." Genetic Science Learning Center. N.p., 2012. Web. 6 Dec.      2012. <http://learn.genetics.utah.edu/content/disorders/whataregd/cdc/      index.html>.

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